Re: Oops in 2.4.7-pre9.

From: Andrew Morton (andrewm@uow.edu.au)
Date: Fri Jul 20 2001 - 01:52:49 EST


Niels Kristian Bech Jensen wrote:
>
> I get this oops while booting 2.4.7-pre9:

Kernel is trying to read /proc/pid entries for a kernel thread
which has called daemonize(). It has a null task_struct.mm.

I tested various other possible problems, such as making
/sbin/hotplug an elf executable and it looks OK, apart from
the /proc problem.

--- linux-2.4.7-pre9/fs/proc/base.c Fri Jul 20 15:39:12 2001
+++ linux-akpm/fs/proc/base.c Fri Jul 20 16:43:02 2001
@@ -670,7 +670,7 @@ static struct inode *proc_pid_make_inode
         inode->u.proc_i.task = task;
         inode->i_uid = 0;
         inode->i_gid = 0;
- if (ino == PROC_PID_INO || task->mm->dumpable) {
+ if (ino == PROC_PID_INO || (task->mm && task->mm->dumpable)) {
                 inode->i_uid = task->euid;
                 inode->i_gid = task->egid;
         }
-
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This archive was generated by hypermail 2b29 : Mon Jul 23 2001 - 21:00:13 EST